
$("#z-querengdian").click(function () {
    let _flag = true;
    $.get("./goodsAndShoppingCart/checkUser.php", {
        username: $("#username").val()
    }, function (data) {
        if (Number(data) == 0) {
           alert("用户已存在");
        }
    })

    if (!_flag) { 
        console.log(11);
        return false
    }
    console.log(22);
    $.post("./goodsAndShoppingCart/addUser.php", {
        username: $("#username").val(),
        userpass: $("#password").val()
    }, function (data) {

        console.log(data);
    });
});












$("header").load("head.html")

    $("#z-youxianginput").click(function(){
        $(".youxiang-baiban").css({
            display:"block"
        })
    })
    $("#youxiang-shijiinput").click(function(){
        $(".youxiang-baiban").css({
            display: "none"
        })
    })


    
    
	function change() {
	    var code = document.getElementById("z-code");
	    
	    var moreCode = new Array(
				'1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
				'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
				'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
				'u', 'v', 'w', 'x', 'y', 'z',
				'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
				'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
				'U', 'V', 'W', 'X', 'Y', 'Z'
		);
	    codes = '';// 重新初始化验证码
	    for (var i = 0; i < 6; i++) {
	        // 随机获取一个数组
	        var a = parseInt(Math.random() * moreCode.length);
	        codes += moreCode[a];
	    }
	    // 验证码添加到input里
	    document.getElementById("z-code").value = codes;


	}

    jQuery(function($){
    
    /**生成一个随机数**/
    function randomNum(min, max) {
        return Math.floor(Math.random() * (max - min) + min);
    }
    /**生成一个随机色**/
    function randomColor(min, max) {
        var r = randomNum(min, max);
        var g = randomNum(min, max);
        var b= randomNum(min, max);
        return "rgb(" + r + "," + g + "," + b + ")";
    }
    var code=drawPic();
    document.getElementById("changeImg").onclick = function(e) {
        e.preventDefault();
        code=drawPic();
    }
    /**绘制验证码图片**/
    function drawPic() {
        var canvas = document.getElementById("canvas");
        var width = canvas.width;
        var height = canvas.height;
        //获取该canvas的2D绘图环境 
        var ctx = canvas.getContext('2d'); 
        ctx.textBaseline ='bottom';
        /**绘制背景色**/
        ctx.fillStyle = randomColor(180,240);
        //颜色若太深可能导致看不清
        ctx.fillRect(0,0,width,height);
        /**绘制文字**/
        var str ='ABCEFGHJKLMNPQRSTWXY123456789';
　　　　 var code="";
　　　　　//生成四个验证码
        for(var i=1;i<=4;i++) {
            var txt = str[randomNum(0,str.length)];
            code=code+txt;
            ctx.fillStyle = randomColor(50,160);
            //随机生成字体颜色
            ctx.font = randomNum(15,40) +'px SimHei';
            //随机生成字体大小
            var x =10 +i *25;
            var y = randomNum(25,35);
            var deg = randomNum(-45,45);
            //修改坐标原点和旋转角度
            ctx.translate(x, y); 
            ctx.rotate(deg * Math.PI /180); 
            ctx.fillText(txt,0,0);
            //恢复坐标原点和旋转角度
            ctx.rotate(-deg * Math.PI /180);
            ctx.translate(-x, -y);
        }
        
        /**绘制干扰线**/
        for(var i=0;i<3;i++) {
            ctx.strokeStyle = randomColor(40, 180);
            ctx.beginPath();
            ctx.moveTo(randomNum(0,width/2), randomNum(0,height/2));
            ctx.lineTo(randomNum(0,width/2), randomNum(0,height));
            ctx.stroke();
        }
        /**绘制干扰点**/
        for(var i=0;i <50;i++) {
            ctx.fillStyle = randomColor(255);
            ctx.beginPath();
            ctx.arc(randomNum(0, width), randomNum(0, height),1,0,2* Math.PI);
            ctx.fill();
        }
        return code;
    }
});

  // 点击返回顶部
  $(".fanhuian1").click(function () {
    $(window).scrollTop(0)
    
})
